TypeScript/tests/baselines/reference/typeofThis.errors.txt

tests/cases/conformance/types/specifyingTypes/typeQueries/typeofThis.ts(24,19): error TS2683: 'this' implicitly has type 'any' because it does not have a type annotation.
tests/cases/conformance/types/specifyingTypes/typeQueries/typeofThis.ts(32,19): error TS2532: Object is possibly 'undefined'.
tests/cases/conformance/types/specifyingTypes/typeQueries/typeofThis.ts(46,23): error TS2331: 'this' cannot be referenced in a module or namespace body.
tests/cases/conformance/types/specifyingTypes/typeQueries/typeofThis.ts(46,23): error TS2683: 'this' implicitly has type 'any' because it does not have a type annotation.
tests/cases/conformance/types/specifyingTypes/typeQueries/typeofThis.ts(52,23): error TS2331: 'this' cannot be referenced in a module or namespace body.
tests/cases/conformance/types/specifyingTypes/typeQueries/typeofThis.ts(52,23): error TS2683: 'this' implicitly has type 'any' because it does not have a type annotation.
tests/cases/conformance/types/specifyingTypes/typeQueries/typeofThis.ts(57,19): error TS7041: The containing arrow function captures the global value of 'this'.
tests/cases/conformance/types/specifyingTypes/typeQueries/typeofThis.ts(57,24): error TS7017: Element implicitly has an 'any' type because type 'typeof globalThis' has no index signature.


==== tests/cases/conformance/types/specifyingTypes/typeQueries/typeofThis.ts (8 errors) ====
    class Test {
        data = {};
        constructor() {
            var copy: typeof this.data = {};
        }
    }
    
    class Test1 {
        data = { foo: '' };
        ['this'] = '';
        constructor() {
            var copy: typeof this.data = { foo: '' };
            var foo: typeof this.data.foo = '';
    
            var self: typeof this = this;
            self.data;
    
            var str: typeof this.this = '';
        }
    }
    
    
    function Test2() {
        let x: typeof this.no = 1;
                      ~~~~
!!! error TS2683: 'this' implicitly has type 'any' because it does not have a type annotation.
    }
    
    function Test3(this: { no: number }) {
        let x: typeof this.no = 1;
    }
    
    function Test4(this: { no: number } | undefined) {
        let x: typeof this.no = 1;
                      ~~~~
!!! error TS2532: Object is possibly 'undefined'.
    }
    
    class Test5 {
        no = 1;
    
        f = () => {
            // should not capture this.
            let x: typeof this.no = 1;
        }
    }
    
    namespace Test6 {
        export let f = () => {
            let x: typeof this.no = 1;
                          ~~~~
!!! error TS2331: 'this' cannot be referenced in a module or namespace body.
                          ~~~~
!!! error TS2683: 'this' implicitly has type 'any' because it does not have a type annotation.
        }
    }
    
    module Test7 {
        export let f = () => {
            let x: typeof this.no = 1;
                          ~~~~
!!! error TS2331: 'this' cannot be referenced in a module or namespace body.
                          ~~~~
!!! error TS2683: 'this' implicitly has type 'any' because it does not have a type annotation.
        }
    }
    
    const Test8 = () => {
        let x: typeof this.no = 1;
                      ~~~~
!!! error TS7041: The containing arrow function captures the global value of 'this'.
                           ~~
!!! error TS7017: Element implicitly has an 'any' type because type 'typeof globalThis' has no index signature.
    }
    
    class Test9 {
        no = 0;
        this = 0;
    
        f() {
            if (this instanceof Test9D1) {
                const d1: typeof this = this;
                d1.f1();
            }
    
            if (this instanceof Test9D2) {
                const d2: typeof this = this;
                d2.f2();
            }
        }
    
        g() {
            if (this.no === 1) {
                const no: typeof this.no = this.no;
            }
    
            if (this.this === 1) {
                const no: typeof this.this = this.this;
            }
        }
    }
    
    class Test9D1 {
        f1() {}
    }
    
    class Test9D2 {
        f2() {}
    }
    
    class Test10 {
        a?: { b?: string }
    
        foo() {
            let a: typeof this.a = undefined as any;
            if (this.a) {
                let a: typeof this.a = undefined as any;    // should narrow to { b?: string }
                let b: typeof this.a.b = undefined as any;
    
                if (this.a.b) {
                    let b: typeof this.a.b = undefined as any;   // should narrow to string
                }
            }
        }
    }
    
    class Test11 {
        this?: { x?: string };
        
        foo() {
            const o = this;
            let bar: typeof o.this = {};
    
            if (o.this && o.this.x) {
                let y: string = o.this.x;   // should narrow to string
            }
        }
    }
    
    class Tests12 {
        test1() { // OK
            type Test = typeof this;
        }
    
        test2() { // OK
            for (;;) {}
            type Test = typeof this;
        }
    
        test3() { // expected no compile errors
            for (const dummy in []) {}
            type Test = typeof this;
        }
    
        test4() { // expected no compile errors
            for (const dummy of []) {}
            type Test = typeof this;
        }
    }